Replacement forks

[kiwiabbo]

So to date. Have removed all un nessasary brakets off the frame. Have fitted a set of forks off a 95 K1100. 41mm with 810 axle to top length thus retaining maximum ground clearance. The forks are 41mm, look like marzochi forks. Have fitted a nice set of clip ons and relocated stock instruments although they will be going at some stage. We are using a late model spoked wheel with 305mm discs and twin 4 pot calpiers although we may ditch one disc and caliper to save weight if the brakeing is still effective. We are going to be altering a standard seat pan and surround at this stage to make it a single seat unit. Will get some photo's sorted soon hopefully.

[Garnet]

"Will get some photo's sorted soon hopefully."

Can't wait!

[mattcfish]

"Will get some photo's sorted soon hopefully."

Can't wait!

+1....AND STICK WITH THE DUAL BIG DISCS.

I've seen several bikes lately that have done a monoshock conversion with fabricated parts. The battery is relocated and the the shock is attached to the frame at the rear of the tank. A horseshoe shaped bracket is added to the stock swingarm for the lower portion of the the shock to attach to. Very cool. I wonder why somebody hasn't made a kit to do it?

[Major Softie]

One disc might be a nice way to go for less unsprung weight, with the right MC.

[AvTech37]

Hi,

I'm really interested to see your photos as I'm planning to go down the cafe racer route myself with a '93 R100R. At the moment I'm trying to research frame / fork geometry, etc as I'm considering possible fork replacement with 'modern' USD units; The article listed on http://paganroad.com/archives/61 was particularly interesting. However, nothing is finalised yet, hence my interest in your project.
I'm not looking to produce a 'period' cafe racer so I have no real rules to adhere to; it's just that I want to make the old airhead into something different with reletively modern suspension and brakes and I'm not too bothered how long it takes...........the bike is a 'keeper' along with the 90s and the HP2 Sport.
Whilst I'm at it, can anyone quote definitive figures for rake and trail for the R100R? Also, any other experiences with USD fork replacement would be really useful.
Thanks
Richard G.

[vanzen]

So to date. Have removed all un nessasary brakets off the frame. Have fitted a set of forks off a 95 K1100. 41mm with 810 axle to top length thus retaining maximum ground clearance.

Replicating the stock "axle to top length" will not be a very meaningful exercise (assuming an 18" wheel).
A significantly more beneficial indicator will be to measure the resulting trail #.
Of course the factory trail #s can be changed to suit –
The forks tubes can easily be raised or lowered in the upper tree to accomplish this ...
but changing trail at random and without consideration
would only invite disappointment or, perhaps, disaster.

[kiwiabbo]

Anyone know how i get a photo on here. Took a couple of progress shots. Cheers Dan

[Major Softie]

Anyone know how i get a photo on here. Took a couple of progress shots. Cheers Dan

upload it to a free photo site, like photobug, and then link to it.